# 音楽絵本・銀河鉄道の夜 (ポケット) vs Four Operations Math

The clearest difference is price: Four Operations Math at Free against 音楽絵本・銀河鉄道の夜 (ポケット)'s $2.99. Four Operations Math also leads on update cadence (every 8 days vs every 25 months). 音楽絵本・銀河鉄道の夜 (ポケット)'s advantage is iOS requirement (13.0 vs 17.0). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Four Operations Math is free to download; 音楽絵本・銀河鉄道の夜 (ポケット) costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

音楽絵本・銀河鉄道の夜 (ポケット) ships an update every 25 months, Four Operations Math every 8 days. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | 音楽絵本・銀河鉄道の夜 (ポケット) | Four Operations Math |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/four-operations-math/id6529530666/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 94.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 8 days** |
| Monetization | Paid | **Free** |
| Size | 147 MB | 21 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [takeshi sainen](https://appshunter.io/developer/427775174) | [Romiick LLC](https://appshunter.io/developer/1716146475) |

## What reviewers say

### 音楽絵本・銀河鉄道の夜 (ポケット)

[App page](https://appshunter.io/ios/app/id483857766)

Experience a classic Japanese novel brought to life with dream-like illustrations and enchanting toytronica music. This interactive book takes you on a journey through a profound fantasy world, following two boys on a mysterious train ride across the galaxy. It's an immersive reading experience designed to captivate.

**Highlights:** Musical adaptation of classic novel, Dream-like illustrations, Toytronica music soundtrack, Interactive reading experience, Sliding text display, Rotating planisphere menu

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Four Operations Math

[App page](https://appshunter.io/ios/app/four-operations-math/id6529530666)

This puzzle game challenges players to create mathematical equations using four numbers and basic arithmetic operations to reach a target value. It promotes logical thinking and problem-solving skills through engaging gameplay with varying challenges.

**Highlights:** Create mathematical equations, Use four numbers and operations, Achieve target values, Logical thinking development, Basic and Custom game modes, Intuitive tap and drag controls

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 音楽絵本・銀河鉄道の夜 (ポケット) free?

音楽絵本・銀河鉄道の夜 (ポケット) costs $2.99, with no in-app purchases.

### Is Four Operations Math free?

Four Operations Math is free to download, with no in-app purchases.

### Do 音楽絵本・銀河鉄道の夜 (ポケット) or Four Operations Math have ads?

Neither 音楽絵本・銀河鉄道の夜 (ポケット) nor Four Operations Math shows ads.

### Which is updated more often, 音楽絵本・銀河鉄道の夜 (ポケット) or Four Operations Math?

音楽絵本・銀河鉄道の夜 (ポケット) ships an update every 25 months, and Four Operations Math every 8 days. Most recently, 音楽絵本・銀河鉄道の夜 (ポケット) was updated on November 13, 2026 and Four Operations Math on November 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*